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18
Test Procedures
TROUBLESHOOTING AND ELECTRICAL
SYSTEM: PEDAL-START GAS VEHICLE
TEST PROCEDURE 25 – Light Switch
See General Warnings on page 1-1.
NOTE:
The headlight circuit is protected by the 20-amp fuse. Check the fuse before this procedure is performed.
See Test Procedure 2 – Fuses on page 18-19.
This is a voltage test.
1.
If necessary, see Testing Basics on page 18-15.
2.
Remove instrument panel.
See Instrument Panel Removal on page 4-10.
3.
Use a multimeter set to 20 volts DC and place alligator clips on the multimeter probes. Connect the red (+) probe
to the light switch terminal where the green/white wire is connected.
4.
Connect the black (–) probe of the multimeter to ground.
5.
With the light switch in the OFF position, the reading should indicate 0 volts. With the light in the ON position,
the reading should indicate battery voltage. If there is no voltage reading, check associated wiring and 10-amp
fuse (located in electrical component box).
See Test Procedure 2 – Fuses on page 18-19.
If the wires and
fuse show continuity and the readings are still incorrect, replace the switch.
TEST PROCEDURE 26 – Voltage at Headlight Socket
See General Warnings on page 1-1.
NOTE:
This is a voltage test.
1.
If necessary, see Testing Basics on page 18-15.
2.
Inspect the wires at the light bulb socket. Make sure the wires are securely fastened to the contacts inside the
socket and that wires are oriented correctly - black to black and blue to blue.
3.
Remove the wire harness connector from the headlight bulb
4.
With the light switch in the ON position, probe across the two terminals in the connector. If battery voltage is
shown, check/replace the headlight bulb.
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
485
Figure 18-23
Voltage Measurement at Headlight Socket
5.
If there is no voltage reading, check associated wiring, light switch and 10-amp fuse (located in electrical
component box).
See Test Procedure 2 – Fuses on page 18-19. See Test Procedure 25 – Light Switch on
Page 18-42
2017 Carryall 500 and 700 Maintenance and Service Manual
Summary of Contents for Carryall 500
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